CN116195903A - Silencing piece and dust collector - Google Patents

Abstract

The invention discloses a silencing piece and a dust collector, which comprise a containing cavity for containing a motor, a silencing side wall surrounding the containing cavity and arranged at least two sections at intervals, a first guide plate extending from one end of the silencing side wall of a first section and forming a first included angle, a second guide plate spaced from the first guide plate and extending from the other end of the silencing side wall of the first section and forming a second included angle, a third guide plate extending from one end of the silencing side wall of the second section and forming the first included angle, and a silencing air outlet positioned between the second guide plate and the third guide plate, wherein air flow is spirally moved outwards from the silencing air outlet. The invention keeps the air-out smooth, reduces the noise and has simple structure.

Description

Silencing piece and dust collector

Technical Field

The invention belongs to the field of dust collectors.

Background

The vacuum cleaner for indoor cleaning generally includes a vacuum cleaner body, a motor provided in the vacuum cleaner body, and a vacuum cleaner dust cup located upstream of the motor, sucking in the dust by high-speed rotation of the motor, and then separating dust from air in the vacuum cleaner dust cup, however, noise is generated due to vibration and airflow movement of the motor, and how to reduce the noise is a great technical problem in the industry.

Disclosure of Invention

The invention aims at: the silencer and the dust collector are capable of keeping air outlet smooth, reducing noise and being simple in structure.

The first technical scheme of the invention is as follows: the utility model provides a silencing piece, its cover is established on the motor of dust catcher, it includes the chamber of acceping the motor, around acceping the chamber and by the amortization lateral wall of interval setting to two sections at least, extend and form the first guide piece of first contained angle by first section amortization lateral wall one end, with first guide piece interval and extend and form the second guide piece of contained angle by first section amortization lateral wall other end, be located second section amortization lateral wall one end and extend and form the third guide piece of first contained angle, and be located a amortization air outlet between second guide piece and the third guide piece, wherein the air current comes out for spiral outside motion from amortization air outlet.

On the basis of the technical scheme, the method further comprises the following auxiliary technical scheme:

the third guide piece is identical to the first guide piece.

The first included angle is larger than the second included angle, the first included angle is 20-75 degrees, and the second included angle is 10-60 degrees.

The second technical scheme of the invention is as follows: the utility model provides a dust catcher, its includes the organism, with the dust cup of organism cooperation connection and the motor portion subassembly that is connected with the organism, wherein motor portion subassembly includes motor casing, by motor casing acceptd motor, the cover is established in the amortization piece in the motor outside, and the cover is established in the motor cover in the amortization piece outside, wherein the amortization piece is including acceping the chamber of acceping the motor, around acceping the chamber and set up into two section at least amortization lateral walls at intervals, by first section amortization lateral wall one end extension and form the first guide piece of contained angle, with first guide piece interval and by first section amortization lateral wall other end extension and form the second guide piece of contained angle, be located second section amortization lateral wall one end extension and form the third guide piece of contained angle, and be located the amortization air outlet between second guide piece and the third guide piece, wherein the air current comes out for spiral outside from amortization air outlet to realize amortization and keep the air-out smooth.

The motor cover comprises a motor cover cavity for accommodating the silencing piece, a motor cover inner wall surrounding the motor cover cavity and provided with a motor cover inner air outlet, and a motor cover outer wall located on the outer side of the motor cover inner wall and provided with a motor cover outer air outlet, wherein the motor cover inner air outlet is adjacent to the silencing air outlet, and the motor cover outer air outlet is close to the dust cup relative to the motor cover inner air outlet so as to achieve labyrinth silencing and simplify a silencing structure.

The motor part component comprises an air outlet net ring which is sleeved on the motor shell and is close to an air outlet in the motor cover and far away from an air outlet of the motor cover, so that an air outlet path is reduced.

The motor part component comprises a display screen which is arranged adjacent to the air outlet net ring, so that a user can acquire corresponding parameters through the display screen and adjust the parameters in time.

The machine body comprises a supporting part for supporting the dust cup, a handle with one end connected with the bottom end of the supporting part, and a supporting piece which is connected with the handle at intervals and with one end connected with the bottom end of the supporting part, so that a user can well hold the dust cup and the dust cup can accord with human engineering mechanics.

And a battery pack connected with the other ends of the handle and the support piece to provide power.

The invention has the advantages that: the air outlet is kept smooth, the noise is reduced, and the structure is simple.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a perspective view of a motor section assembly of the present invention;

FIG. 3 is an exploded view of the motor section assembly of the present invention;

FIG. 4 is a cross-sectional view of the motor section assembly of the present invention at an angle;

FIG. 5 is a cross-sectional view of the motor section assembly of the present invention at another angle;

FIG. 6 is a perspective view of a motor cover according to the present invention;

FIG. 7 is a perspective view of a muffler according to the present invention;

fig. 8 is a structural view of the assembled muffler and motor cover of the present invention.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "front", "rear", "left", "right", "upper", "lower", "inner", "outer", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may communicate with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

Examples: referring to fig. 1-3, and referring to fig. 7-8, a first embodiment of a silencer is disclosed for use in a vacuum cleaner, which includes a housing chamber 520 housing a motor 400, a silencing sidewall 540 surrounding the housing chamber 520 and spaced apart to form at least two segments, a first guide vane 542 extending from one end of the first segment of silencing sidewall 540 and forming a first angle a, a second guide vane 544 spaced apart from the first guide vane 542 and extending from the other end of the first segment of silencing sidewall 540 and forming a second angle b, a third guide vane extending from one end of the second segment of silencing sidewall 540 and forming a first angle, and a silencing air outlet 546 positioned between the second guide vane 544 and the third guide vane, wherein the airflow exits the silencing air outlet 546 as a spiral. In this embodiment, the third guide piece is identical in structure, shape, and size to the first guide piece 542. The first included angle a is larger than the second included angle b, and the first included angle a is 20-75 degrees, and the second included angle b is 10-60 degrees. The number of first guide pieces 542 is 1 or more, and the number of second guide pieces 544 is equal to the sum of the numbers of first guide pieces 542 and third guide pieces. In this embodiment, the silencing side walls 540 are arranged at three intervals, the number of the first guide pieces 542 is 2, the number of the second guide pieces 544 is 4, and the number of the third guide pieces is 2. The axial length of the first guide piece 542 is greater than 2/3 of the axial length of the motor 400 and less than 1/4 of the axial length of the motor 400, and the axial lengths of the second guide piece 544 and the third guide piece are each the same as the axial length of the first guide piece 542. While the axial length of the sound deadening air outlet 546 is less than 1/2 of the axial length of the first guide vane 542.

Also, in addition to the first embodiment, referring to fig. 1 to 8, the present invention further discloses a second embodiment of a dust collector, which comprises a machine body 100, a dust cup 200 cooperatively connected with the machine body 100, and a motor part assembly 300 connected with the machine body 100, wherein the motor part assembly 300 comprises a motor housing 310, a motor 400 accommodated by the motor housing 310, a muffler 500 sleeved outside the motor 400, and a motor cover 600 sleeved outside the muffler 500.

The machine body 100 includes a support portion for supporting the dust cup 200, a handle 120 having one end connected to the bottom end of the support portion, and a support member 140 connected to the handle 120 at a distance and having one end connected to the bottom end of the support portion. The extending direction of the handle 120 intersects the extending direction of the supporting portion at an angle of 95-115 degrees. The present embodiment further includes a battery pack 440 connected to the other ends of the handle 120 and the support 140 and supplying power to the motor 400. The battery pack 440 is preferably a battery pack of a lithium battery or a nickel hydrogen battery.

The dirt cup 200 includes a dirt cup chamber therein, a cyclone screen assembly disposed within the dirt cup chamber, and a secondary cyclone downstream of the cyclone screen assembly. The secondary cyclones are disposed adjacent the motor section assembly 300. In this embodiment, the central axis of the dirt cup chamber is oriented parallel to the horizontal and passes through the center of the motor 400 and also through the center of the muffler 500 and motor cover 600.

The motor unit assembly 300 further includes an air outlet mesh 700 fitted over the motor housing 310 and located close to the motor housing interior air outlet 632 and remote from the motor housing exterior air outlet 642, and a display screen 800 disposed adjacent to the air outlet mesh 700. The motor 400 is preferably a DC brushless or brush motor having an axial length in the range of 50-70mm and a diameter in the range of 35-55mm. The present embodiment further includes a motor pressing seat 420 supporting the motor 400. The axial length between the air outlet mesh 700 and the motor housing air outlet 642 is greater than the axial length between the motor housing inner air outlet 632 and the motor housing air outlet 642 to reduce noise and maintain miniaturization of the product.

Referring to fig. 7 to 8, the muffler 500 includes a housing cavity 520 housing the motor 400, a muffler sidewall 540 surrounding the housing cavity 520 and spaced apart to form at least two sections, a first guide piece 542 extending from one end of the muffler sidewall 540 of the first section and forming a first angle a, a second guide piece 544 spaced apart from the first guide piece 542 and extending from the other end of the muffler sidewall 540 of the first section and forming a second angle b, a third guide piece extending from one end of the muffler sidewall 540 of the second section and forming a first angle a, and a muffler air outlet 546 located between the second guide piece 544 and the third guide piece, wherein the muffler air outlet 546 is defined by a muffler air outlet 541 connected to the muffler sidewall 540, and the muffler sidewall 540 and the muffler air outlet 541 have a step difference equal to the axial length of the muffler air outlet 546, so as to ensure that the air outlet area of the muffler air outlet 546 is within a reasonable range, the air speed is too slow, the air outlet is not smooth, and the air outlet is too small to cause high-frequency noise, wherein the air flow is spirally moved out of the muffler air outlet 546 to reduce noise. In this embodiment, the third guide piece is identical in structure, shape, and size to the first guide piece 542. The second guide piece 544 may also be located at the other end of the second sound deadening sidewall 540 and form a second included angle b. The first included angle a is larger than the second included angle b, and the first included angle a is 20-75 degrees, and the second included angle b is 10-60 degrees. The number of first guide pieces 542 is 1 or more, and the number of second guide pieces 544 is equal to the sum of the numbers of first guide pieces 542 and third guide pieces. In this embodiment, the silencing side walls 540 are arranged at three intervals, the number of the first guide pieces 542 is 2, the number of the second guide pieces 544 is 4, and the number of the third guide pieces is 2. The axial length of the first guide piece 542 is greater than 2/3 of the axial length of the motor 400 and less than 1/4 of the axial length of the motor 400, and the axial lengths of the second guide piece 544 and the third guide piece are each the same as the axial length of the first guide piece 542. While the axial length of the sound deadening air outlet 546 is less than 1/2 of the axial length of the first guide vane 542. The thickness of the first guide piece 542, the second guide piece 544, and the third guide piece is in the range of 1-2mm, and arc-shaped guide pieces are preferable in this embodiment. The axial length of the silencer 500 is 30-40mm, and the diameter of the receiving chamber 520 is 40-60mm, thereby having a simple and compact structure.

The motor can 600 includes a motor can cavity 620 housing the muffler 500, a motor can inner wall 630 surrounding the motor can cavity 620 and having a motor can inner air outlet 632, and a motor can outer wall 640 located outside the motor can inner wall 630 and having a motor can outer air outlet 642, wherein the motor can inner air outlet 632 is adjacent to the muffler air outlet 546 and the motor can outer air outlet 642 is adjacent to the dust cup 200 relative to the motor can inner air outlet 632. The motor housing inner wall 630 is in abutting contact with the motor press 420 made of rubber. The motor can 600 further includes a plurality of fixing bosses 602 provided on an inner wall 630 of the motor can and having a rectangular shape. The fixing boss 602 is located between the first guide piece 542 and the second guide piece 544 and is in abutting contact with the noise reduction sidewall 540 after assembly to ensure fixation between the noise reduction member 500 and the motor cover 600, avoiding relative movement.

During operation, the air flow generated by the motor is led by the guide piece spiral of the silencing piece 500 to move towards the tail end of the motor 400, then sequentially leaves the silencing air outlet 546 to enter the air outlet 632 in the motor cover, turbulence and high-frequency noise are reduced, then moves towards the top end of the motor 400, flows out of the air outlet 642 through the motor cover, then moves towards the tail end of the motor 400, and is discharged to the outside through the air outlet net ring 700, so that the use of silencing cotton is reduced through multiple labyrinth silencing, the air outlet is kept smooth, the noise is reduced, and the structure is simple.

Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. The utility model provides a silencing element, its cover is established on the motor of dust catcher, its characterized in that includes: the motor comprises a containing cavity (520) for containing the motor (400), a silencing side wall (540) surrounding the containing cavity (520) and arranged at intervals to form at least two sections, a first guide plate (542) extending from one end of the silencing side wall (540) at a first included angle, a second guide plate (544) spaced from the first guide plate (542) and extending from the other end of the silencing side wall (540) at a second included angle, a third guide plate extending from one end of the silencing side wall (540) at a second included angle and forming a silencing air outlet (546) between the second guide plate (544) and the third guide plate, wherein air flows out of the silencing air outlet (546) to spirally move outwards.

2. The muffler of claim 1, wherein: the third guide piece is identical to the first guide piece (542).

3. The muffler of claim 1, wherein: the first included angle is larger than the second included angle, the first included angle is 20-75 degrees, and the second included angle is 10-60 degrees.

4. A vacuum cleaner, characterized in that it comprises: the dust cup (200) that organism (100), match with organism (100) are connected, and motor portion subassembly (300) that are connected with organism (100), wherein motor portion subassembly (300) include motor casing (310), by motor casing (310) motor (400) that holds, cover establish in motor (400) outside noise reduction piece (500), and cover establish motor cover (600) outside noise reduction piece (500), wherein noise reduction piece (500) are including holding chamber (520) that holds motor (400), around holding chamber (520) and by interval setting into at least two sections noise reduction lateral wall (540), by first section noise reduction lateral wall (540) one end extend and form first contained angle first guide piece (542), with first guide piece (542) interval and by first section noise reduction lateral wall (540) other end extend and form second contained angle second guide piece, be located second section noise reduction lateral wall (540) one end extend and form first contained angle third guide piece, and be located between second guide piece (544) and the third guide piece noise reduction air outlet (546), wherein air current (546) is spiral out to wind outlet (546).

5. A vacuum cleaner as claimed in claim 4, wherein: the motor cover (600) comprises a motor cover cavity (620) for accommodating the silencing piece (500), a motor cover inner wall (630) surrounding the motor cover cavity (620) and provided with a motor cover inner air outlet (632), and a motor cover outer wall (640) located outside the motor cover inner wall (630) and provided with a motor cover outer air outlet (642), wherein the motor cover inner air outlet (632) is adjacent to the silencing air outlet (546), and the motor cover outer air outlet (642) is close to the dust cup (200) relative to the motor cover inner air outlet (632).

6. A vacuum cleaner as claimed in claim 5, wherein: the motor assembly (300) includes an air outlet mesh (700) that is sleeved on the motor housing (310) and is proximate to the motor housing inner air outlet (632) and distal to the motor housing outer air outlet (642).

7. A vacuum cleaner as claimed in claim 6, wherein: the motor part assembly (300) comprises a display screen (800) arranged adjacent to the air outlet net ring (700).

8. A vacuum cleaner as claimed in claim 4, wherein: the machine body (100) comprises a supporting part for supporting the dust cup (200), a handle (120) with one end connected with the bottom end of the supporting part, and a supporting piece (140) which is connected with the handle (120) at intervals and with one end connected with the bottom end of the supporting part.

9. The vacuum cleaner of claim 8, further comprising a battery pack (440) coupled to the handle (120) and the other end of the support member (140).

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